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Program Trading Accounts
For 17% of NYSE Volume

Updated April 16, 1999 12:01 a.m. ET

NEW YORK -- Program trading for the week ended April 9 accounted for 17%, or an average 131.1 million daily shares, of New York Stock Exchange volume.

Brokerage firms executed an additional 49.5 million daily shares of program trading away from the Big Board, mostly on foreign markets. Program trading is the simultaneous purchase or sale of at least 15 different stocks with a total value of $1 million or more.